/*
 * Copyright (C) 2010 Yury Kudryashov.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package name.kudryashov.functions;

import name.kudryashov.base.Argument;
import name.kudryashov.strings.Joiner;

import java.util.ArrayList;
import java.util.List;

class AndPredicate<A> implements Predicate<A> {

    private final List<Predicate<? super A>> predicates;

    AndPredicate(Predicate<A>... predicates) {
        this.predicates = new ArrayList<Predicate<? super A>>(predicates.length);
        for(Predicate<A> p : predicates) {
            Argument.requireNotNull(p);
            this.predicates.add(p);
        }
    }

    public boolean apply(A arg) {
        for(Predicate<? super A> p : predicates) {
            if(!p.apply(arg)) {
                return false;
            }
        }
        return true;
    }

    public String toString() {
        return "and(" + Joiner.on(", ").join(predicates) + ")";
    }
}